Child Tax Credit 2026: Rules, Refunds and Worked Examples
For tax years 2025 and 2026, the federal Child Tax Credit is up to $2,200 per qualifying child. The refundable ACTC has a $1,700-per-child cap, but the actual refundable amount is calculated separately. Start with the year, then the child’s eligibility.
CTC can reduce eligible income tax. ACTC can refund part of the remaining credit if you qualify. $2,200 plus $1,700 is not the available credit for one child. The examples below show how the parts fit together.
2026 on the calendar can mean two different things
A 2025 tax return filed in 2026 reports 2025 income and family circumstances. Tax year 2026 is normally filed in 2027. As reviewed September 8, 2026, the Schedule 8812 form and instructions linked here are for 2025. The IRS has separately published the 2026 credit caps; use final forms for the year you file.
How the amount is calculated
The $2,200 CTC maximum and $1,700 ACTC cap apply per qualifying child for both years. Income phase-out and eligible tax can reduce the credit. The cap alone does not determine a refund.
Sources: IRS 2025 Child Tax Credit · 2026 amounts: Rev. Proc. 2025-32, 4.05.
- Work out the available credit. Check qualifying children and the modified-AGI phase-out on Schedule 8812. Modified AGI is a tax-return calculation, not take-home pay.
- Use the nonrefundable part against eligible tax. The form’s Credit Limit Worksheet accounts for the relevant tax and other credits. This is not simply the balance you still owe when filing.
- Calculate any ACTC. In the usual calculation, compare unused credit, $1,700 per qualifying child and 15% of earned income above $2,500. The smallest applicable limit controls. Certain families with three or more qualifying children and bona fide Puerto Rico residents have another calculation. Filing Form 2555 prevents claiming ACTC.
Two examples using the 2025 form
Both illustrations assume one qualifying child, all required tax IDs and other conditions met, no phase-out, no other dependents, no Form 2555 and no Puerto Rico special calculation. They use the earned-income amount and eligible-tax limit already determined under Schedule 8812; they do not calculate a complete tax return.
| Step | Example A | Example B |
|---|---|---|
| Earned income used for ACTC | $10,000 | $40,000 |
| Eligible tax limit before CTC | $0 | $1,500 |
| CTC used against eligible tax | $0 | $1,500 |
| Unused credit: $2,200 minus CTC used | $2,200 | $700 |
| Income calculation: (earned income − $2,500) × 15% | $1,125 | $5,625 |
| ACTC: smallest of unused credit, $1,700 cap, income calculation | $1,125 | $700 |
Example A does not turn the entire $2,200 into a refund. Example B uses $1,500 against eligible tax and $700 as ACTC: together, $2,200. Other taxes, withholding, payments and credits still determine the return’s total refund or balance due.
Sources: 2025 Schedule 8812, lines 12–20 and 27 · Credit Limit Worksheet and special cases.
Check the child, the tax IDs and income
- Age and dependency: the child must generally be under 17 at year-end and claimed as your dependent. A child turning 17 during the year fails the CTC age test for that year.
- Relationship, home and support: the child must meet the relationship test, generally live with you for more than half the year, and not provide more than half their own support. Births, deaths, temporary absences and separated-parent cases need the relevant exceptions.
- Other child tests: check the joint-return rule and U.S. citizen, national or resident-alien requirement.
- Child’s SSN: the required employment-valid SSN must be issued by the return due date, including extensions. A special documentation rule exists for a child born and deceased during the year.
- Claimant’s tax ID: since tax year 2025, the claimant also needs the required work-valid SSN. On a joint return, one spouse must have it; the other must have a timely SSN or ITIN. The child’s SSN alone is not enough.
- Modified AGI: the phase-out starts above $400,000 when married filing jointly, or $200,000 for other filing statuses. Being below the threshold does not guarantee the full credit.
Sources: IRS qualifying-child tests · Schedule 8812: IDs, exceptions and calculations.
When someone else may claim the child
Do not assume an agreement between parents transfers every tax benefit. Ask a qualified preparer about dependency, custodial-parent rules and any required Form 8332. EITC follows its own residency rules. If the child is too old for CTC, check the separate nonrefundable Credit for Other Dependents, up to $500, rather than counting them as under 17.
Sources: Separated parents and EITC · Credit for Other Dependents.
Prepare the claim in manageable steps
- Choose one tax year. Put that year’s income statements and family records together.
- Check the child tests first. Record the age at year-end, relationship and where the child lived. Resolve competing claims before entering the child on a return.
- Check identification privately. Confirm required names and tax IDs against official records. Do not upload them here.
- Complete the return and Schedule 8812. Use that year’s software/forms or a preparer; completing this guide does not claim the credit.
- Keep the filed return and confirmation. The ACTC amount is part of the return, not a separate benefits application.
Need help calculating or filing? Compare IRS Free File and VITA/TCE options. If your return claims ACTC, the IRS cannot issue the entire refund before mid-February; an early filing date does not guarantee a payment date.
Common questions
Is the 2026 Child Tax Credit $2,200 or $1,700?
The maximum CTC is $2,200 per qualifying child. The ACTC is a calculated refundable part capped at $1,700 per qualifying child for tax year 2026. The amounts are not added together.
Do I have to work to get the Child Tax Credit?
The nonrefundable CTC reduces eligible income tax. For the usual ACTC calculation, the income-based limit is 15% of earned income above $2,500. Certain families with three or more qualifying children and bona fide Puerto Rico residents use a separate calculation. The form determines the actual amount.
What if my child turns 17 during the tax year?
The child is not under 17 at year-end, so they do not meet the CTC age test for that year. The Credit for Other Dependents may be available if its separate rules are met.
Does an ITIN for a parent automatically rule out CTC?
On a joint return, one spouse must have the required work-valid SSN; the other may have a timely SSN or ITIN. The qualifying child also needs the required SSN. A sole claimant without the required SSN cannot claim CTC/ACTC under the rules introduced for tax year 2025.
Does this page calculate my refund?
No. These are worked examples, not a personal calculation. Use the correct-year Schedule 8812 through tax software or a preparer, and complete the rest of the return to determine your refund or balance due.
Sources: 2025 Schedule 8812 · 2025 instructions · 2026 published caps.
Editorial review: September 8, 2026. This guide separates published rules by tax year; use the final forms for the year you are filing. It does not calculate or file your return.